 7 definitions found
From WordNet (r) 2.0 [wn]:
null
adjective: lacking any legal or binding force; "null and void" [syn: {void}]
noun: a quantity of no importance; "it looked like nothing I had
ever seen before"; "reduced to nil all the work we had
done"; "we racked up a pathetic goose egg"; "it was all
for naught"; "I didn't hear zilch about it" [syn: {nothing},
{nil}, {nix}, {nada}, {aught}, {cipher}, {cypher}, {goose
egg}, {naught}, {zero}, {zilch}, {zip}]
From The Collaborative International Dictionary of English v.0.44 [gcide]:
Null \Null\, adjective [L. nullus not any, none; ne not + ullus any, a
dim. of unus one; cf. F. nul. See {No}, and {One}, and cf.
{None}.]
1. Of no legal or binding force or validity; of no efficacy;
invalid; void; nugatory; useless.
Faultily faultless, icily regular, splendidly null,
Dead perfection; no more. --Tennyson.
2. Having a value of zero; as, of null utility.
[PJC]
3. (Math.) Empty; having no members; as, the null set.
[PJC]
4. (Computers) Unassigned or meaningless; -- a special value
given to variables, especially pointers or logical
variables, indicating that it is meaningless and cannot be
used in computation; as, an uninitialized pointer in "C"
is given a null value. The actual value that is stored in
memory to indicate the null condition may vary with the
computer language used.
[PJC]
From The Collaborative International Dictionary of English v.0.44 [gcide]:
Null \Null\, noun
1. Something that has no force or meaning.
2. That which has no value; a cipher; zero. --Bacon.
{Null method} (Physics.), a zero method. See under {Zero}.
From The Collaborative International Dictionary of English v.0.44 [gcide]:
Null \Null\, verb (used with an object) [From null, adjective, or perh. abbrev. from annul.]
To annul. [Obs.] --Milton.
From The Collaborative International Dictionary of English v.0.44 [gcide]:
Null \Null\, noun [Etymol. uncertain.]
One of the beads in {nulled work}.
From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:
51 Moby Thesaurus words for "null":
aimless, bad, bare, barren, bland, blank, bleached, characterless,
clear, designless, devoid, empty, existless, featureless, garbled,
hollow, importless, inane, ineffective, ineffectual, inefficacious,
insignificant, insipid, invalid, lacking, meaningless, minus,
missing, negative, nonconnotative, nondenotative, nonexistent,
null and void, phatic, purportless, purposeless, scrambled,
senseless, unexisting, unmeaning, unrelieved, unsignificant,
useless, vacant, vacuous, void, white, with nothing inside,
without being, without content, worthless
From The Free On-line Dictionary of Computing (27 SEP 03) [foldoc]:
null
A special value used in several languages to
represent the thing referred to by an uninitialised pointer.
A special value that may be stored in some database
columns to represent an unknown, missing, not applicable, or
undefined value. Nulls are treated completely differently
from ordinary values when evaluating SQL expressions and there
are several SQL constructs for dealing with nulls.
(2003-06-17)
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